﻿// JScript 文件
        function letter(number)
        {
            number=number*1;
            switch (number) {
               case 1 :
                   return "A";
               case 2 :
                   return "B";
               case 3 :
                   return "C";
               case 4 :
                   return "D";
               case 5 :
                   return "E";
               case 6 :
                   return "F";
               case 7 :
                   return "G";
               case 8 :
                   return "H";
               case 9 :
                   return "I";
               case 10 :
                   return "J";
               case 11 :
                   return "K";
               case 12 :
                   return "L";
               case 13 :
                   return "M";
               case 14 :
                   return "N";
               case 15 :
                   return "O";
               case 16 :
                   return "P";
               case 17 :
                   return "Q";
               case 18 :
                   return "R";
               case 19 :
                   return "S";
               case 20 :
                   return "T";
               case 21 :
                   return "U";
               case 22 :
                   return "V";
               case 23 :
                   return "W";
               case 24 :
                   return "X";                   
               case 25 :
                   return "Y";
               case 26 :
                   return "Z"; 
               default :
                   return "0";
            } 
        }

